Closed for the following reason
the question is answered, right answer was accepted by
sarasdad
close date 2017-08-21 14:36:31.011432

Comments

on my LO ( Version: 5.1.6.2 Build ID: 1:5.1.6~rc2-0ubuntu1~xenial2 ) the keys work in Calc.
Page Up scrolls 1 page up ( 28 cells on my screen ),
Page Down scrolls 1 page down,
Home and End both select the first cell in the current Row,